❦ 29 juin 2015 22:29 +0200, Thomas Goirand <zigo@debian.org> :
>>> So your proposal is: if the default is unusable (like above), then the
>>> poor user has to find a way to fix that... I'm not convince that this is
>>> what we want. I'd very much prefer a usable default.
>> Me too, but there is none that we can use.
>
> Sure there is: keep the good old ethX naming, which has always worked
> for many, many years. Now, expecting someone will raise the fact that
> sometimes, we get a different order of the ifaces. Well, there's many
> ways around that, the persistent naming file is one solution (which I
> don't like, as I think it shouldn't be written by default, it should be
> the user's decision to write it if he wants to, but hey, let's not
> discuss that...).
It has worked for many many years as long as the drivers were loaded
synchronously. This is not the case anymore. When you have two brands of
network card (for example bnx2 and e1000, quite common on HP servers),
at each boot, you can get something different. And while the persistent
naming file is a solution that worked almost all the time, there was
some time where an interface were renamed to "renameXX" due to a naming
conflict with the kernel.
An alternative would be to use something like "emX". Only the first boot
would be "random" which might prove complex when deploying on a large
cluster of identical nodes.
This has already been explained in this very same thread.
--
Use variable names that mean something.
- The Elements of Programming Style (Kernighan & Plauger)
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